AFDD fire protection switch according to DIN VDE 0665-10/ EN62606, combined with miniature circuit breaker 1P+N, with electronic residual current measurement (300 mA) to increase fire protection in circuits not protected by RCD, with screw technology. Contact protection according to IP2x DIN VDE 0106 part 100, blue test button and AFD trip indication. Simple individual removal from the busbar system. With VDE symbol. Suitable for retrofitting of additional devices. Labeling option directly on the device.